XYZ Corporation is evaluating a new product development project. The project requires an initial investment of $10,000,000 and is expected to generate cash flows of $3,000,000 in the first year, $4,000,000 in the second year, $5,000,000 in the third year, and $2,000,000 in the fourth year. Calculate the payback period for this investment and discuss its implications for XYZ Corporation's decision-making process.

53. Tesla, Inc. is considering issuing bonds to finance its expansion plans. The bonds have a face value of $10,000,000, a coupon rate of 5%, and a maturity period of 15 years. Analyze how changes in market interest rates may affect the bond's present value over time. Consider scenarios where the market interest rate increases by 1% and decreases by 1%. Calculate the bond's present value under each scenario for the first five years and provide an in-depth interpretation of the results, highlighting potential implications for Tesla's financing strategy and investor relations.